Display screen or portion thereof with a sequential graphical user interface of a mobile device



FIG. 1 is a front view of a display screen or portion thereof with a sequential graphical user interface showing a first image in a sequence according to a first embodiment of our new design;

FIG. 2 is a second image thereof; and

FIG. 3 is a third image thereof.

FIG. 4 is a front view of a display screen or portion thereof with a sequential graphical user interface showing a first image in a sequence according to a second embodiment of our new design;

FIG. 5 is a second image thereof; and,

FIG. 6 is a third image thereof.

The broken lines showing a display screen with a graphical user interface are included for the purpose of showing portions of the article which form no part of the claim. The appearance of the image sequentially transitions between the images shown in FIGS. 1-3, for the first embodiment, and the images shown in FIGS. 4-6, for the second embodiment. The process or period in which one image transitions to another image forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a sequential graphical user interface of a mobile device, as shown and described. 